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Free keywords:
Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
MPINP:
Hochenergie-Astrophysik Theorie - Abteilung Hofmann
Abstract:
The beaming pattern of radiation emitted by a relativistically moving source
like jets in microquasars, AGN and GRBs, is a key issue for understanding of
acceleration and radiation processes in these objects. In this paper we
introduce a formalism based on a solution of the photon transfer equation to
study the beaming patterns for emission produced by electrons accelerated in
the jet and upscattering photons of low-energy radiation fields of external
origin (the so-called External Compton scenario). The formalism allows us to
treat non-stationary, non-homogeneous and anisotropic distributions of
electrons, but assuming homogeneous/isotropic and non-variable target photon
fields. We demonstrate the non-negligible impact of the anisotropy in the
electron distribution on angular and spectral characteristics of the EC
radiation.
